Spitzer Observations of the Naked Eye GRB080319B

Details Spitzer Observations of the Naked Eye GRB080319B Spitzer Observations of the Naked Eye GRB080319B

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008sptz.prop..478k&link_type=abstract

Spitzer Proposal ID #478

Physics

Scientific paper

We request a single epoch of IRS blue peak-up imaging of GRB080319B, the brightest optical counterpart to a gamma-ray burst ever detected. The peak optical magnitude observed from GRB080319B, R ~ 6 mag, implies the event was (briefly) visible to the naked eye and almost 3 magnitudes brighter than the previous record holder, GRB990123. Like GRB990123, GRB080319B shows a dramatic rise and fall at early times indicative that we are probing the shocked ejecta of the outflow via reverse shock emission. Spitzer infrared imaging, when coupled with our broadband optical, X-ray, and radio campaign, should help unravel what underlying properties distinguish events like GRB080319B and GRB990123 from the majority of GRB afterglows.

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